I've been attempting to make Starbucks Frappucinnos at home for years and was never satisfied. Either the coffee was too weak, granulated sugar made it grainy, the flavor mix-ins didn't flavor it consistently or the ice/liquid would separate in a mess. So I'd end up spending $5 just trying to make one anyway.
However, I have recently been able to make ones I love! My students have even requested it on several occasions. And, according to the recipe, it saves you 92% of the cost of going to Starbucks!
The secret ingredient is xanthan gum- just a pinch will help keep the ice+ liquid blended! I found xanthan gum with the specialty baking supplies. It is regularly used in gluten free baking, so your store may have it in the gluten-free section. It is a bit pricey, but it only takes a tiny amount per frappe. (Be sure not to use more than a pinch or else your frappe will taste like lotion. No kidding.)
I use Torani syrups to flavor my frappes/lattes and love them. My favorite flavor to use is caramel! However, you can easily make your own syrups! Check out these from Annie's Eats.
What You'll Need:
- 1 cup double-strength Starbucks coffee OR 3/4 cup fresh espresso (cold)
- 3/4 cup milk
- 2 tbsp flavored syrup (or to taste)
- 2 cups ice
- Secret ingredient: Pinch of xanthan gum OR 1 teaspoon dry pectin
What To Do:
Blend all of the ingredients until smooth and creamy! Taste and adjust accordingly. Serve immediately. You can also store in the fridge and re-blend when you're ready.
Recipe adapted from Squawk Fox.